To diamond electric



W. D. KAHN.

PORTABLE LAMP.

APPLICATION FILED fEB.21. 1919.

Patented NOV. 7, 1922.

A TTORNE Patented Nev. 7, i922.

UNITED 'sT-Anas] 1,434,722@- PATNT (,)FFICEr WALTER D. KAHN, oEcEnAEHUEsT, NEW YORK, ,AssIGNon EY MEsNE ASSIGNMENTS,

To DIAMOND ELECTRIC vsPEcIALTIEs coEP., or NEWARK, lNEW Jansma-A como- RATION-OF NEW JERSEY.

,y PORTABLE LAME.

Appiicatio inea February 27', '1919. ,serial Np. 279,627.

T o all whom t may concern; i

Bc` it known that'I, WALTER D.y KAKITN, a citizen' of theUnited States, and a residentV of Cedarhurst, yNassau `County, State ot New York, have invented f an Improvement-` 1 n Portable Lamps, of which the following is a specil'ication. f

The present inventionrelates toy an improvement in portable lamps, oneobject being toprovide a device of this character in which' the electric lampmay be protected from injury byimpactcot the battery against the nipple end of said lamp. It is also contemplated that the present imp-rove-y ments will be instrumental invsimplifymg and re-inforcing the'constructicn of devices to which they may be applied.

An embodiment of my invention 1s illustrated in the drawings forming apart of the y l L upset eyelets 18 passmg through sa1d casing present specilication rand 4in which,

Figure 1 is an elevation,

Figure 2, a central verticalsection, n

Figure 3, an enlarged detail view partly in section of the switch mechanism,

Figure 4, a vertical section of a portion of the deviceto show the construction of the buifer and re-inforcing means applied to a casing of non-conductive material.,

Figure 5, a plan view of a portion ofsaid builer, and

of the buii'er in a casing made of metal or other conductive material.

As shown in the drawings, adevlce embodying my invention may include a casing 1 of any suitable material, either conductive 'i y or a non-conductive.

At one end of said casing, a cap 2k may be attached by` any suit a'ble means, here shown'fas ka threadedpprtion engaging a similarly threaded portion of the casing. vided with a spring member 3 adapted to bear against a battery e having one pole'k at 5 and the other pole at 6. At the en d of the casing opposite cap 2. is'another similarly attached cap 7 provided with an opening adapted to receive and retain a lens or other light transmitting member 8.

Between the lens 8 and battery 4, I provide lamp supporting. means and means adapted to facilitate contact ,between one Dole of the lamp and pole 5 of the battery. I also provide means for establishing contact between the opposite pole of the lamp and pole 6 ot the battery.k For this purpose, a

Said cap is preferably prometallic strip 9 is secured to the'casingkv in such a manner that one end of said strip will bein contact with a portion of cap 2 which in turn is in current conducting relation to pole 6 of the battery through the spring 3. Another strip 10 is also 'secured to the casng1,.said strips-9 and`10 being connected and disconnected `electrically b means ot' a vsuitable switch here illustrated as including terminals 11 and`v12, adaptedk to contactfwith corresponding terminals on the strips 9kand 10.

In the present embodiment of my invention, a lamp 13 may be supported by a reliector 14 having a threaded socket portion k15 adapted to receive the nipple 16 of said lamp. As illustrated in Figs. 4, 5 and 6, al buffer 17 may berigidly secured to the casing 1 by any suitable means, here shown as and through corresponding openings in straps 19 attached to or forming a part of the buffer 17. `A projecting contact member 21 may be providedto engage the pole of the lamp 13 to transmit the current passf lng between said lamp and pole 5 of the` battery.

In operation, the battery 4 may be in-y serted in the casing 1 inthe usualmanner,

, whereupon pole 5 will engage contact 2.0. Figure 6, a modification ofthe assembly in thecasing and also when the lamp is being carried and subjected to severe handling.

Thus, theinterposing of a rigid member between pole 5 of the battery and the corre spending pole of the lampv will prevent the latterv from being crushed in by weight of the battery. Also, a rigid member inserted in the vcasingwillbe effective in reinforcing said casing, particularly where ther latter is made of fibrous material common in the art.

I claim as my invention:

1. In a portable electric light, the combii nation of a casing, a battery within the casing, a lamp in circuitwith saidbattery and a buffer extending across the casing and rigidly attached thereto and having a resilient Contact member in constant yielding engagement with the lamp.

2. In a portable electric light, the combination of casing, a battery Within the caeng, a lampin circuit with the battery, and a U-shaped metallic strap secured to the casing and arranged between the lamp and the ya resilient Contact member mounted upon the buil'er.

4., In a portable electric light` the combination of a cylindrical casing of insulating material, a metallic U-shaped strap extending across the casing and attached thereto,

a lamp and a resilient Contact member in constant yielding engagement with the lamp, comprising a strip of metal folded upon itself, mounted upon the strap adjacent. the central portion thereof.

5. In a portable electric light, the combination of a casing, a battery Within the Casing, a lamp in circuit with the battery, a metallic buffer extending across the casing and rigidly connected thereto and provided with a depression adjacent its central portion, constituting a Contact for engagement With one pole of the vbattery and a resilient contact in constant yielding engagement with the lamp, mounted upon said buil'er adjacent its central portion.

In testimony whereof7 I haveV Signed my name to this specication this 25th day ot February, 1919.

WALTER n. KAHN. 

